Dear New York Tenant:
The landlord is not bound by the oral representations made by the broker. You need the repair and renovations detailed in the lease. If you cannot gain a written commitment included with the lease walk away because you will not have legal proof otherwise.
The answer provided to you is in the nature of general information. The general proposition being that you should try to avoid a bad outcome if you can.
Run - do not walk - away from this broker, he cannot be trusted.
I'm just 3 "helpful" answers away from a free toaster-oven! I may be guessing or not licensed in your state. No atty/client relationship exists.
I agree with my colleagues. The Landlord cannot be bound by promises the broker makes with regard to such things without an addendum on the lease stating the same.
It sounds like the broker is more interested in the fee than your welfare. Seek another broker, or, if you wish to avoid broker's fees altogether (and brokers as well), contact property management companies directly via their websites, or seek no-fee listings on curbed, rent.com, trulia or similar sites.
Best of luck.
This does not constitute legal advice or the engagement of my services as an attorney.